GGT test cost in Seattle, WA — inpatient
In Seattle-Tacoma-Bellevue, WA, 19 hospitals list a cash price for gamma-glutamyl transferase (GGT) blood test as an inpatient: from $22.65 to $72.70, with a median of $51.84. The lowest listed price is at Saint Clare Hospital — $29.19 less than the median here. Across Washington, the median is $52.17 at 58 hospitals.
Cash prices at 19 facilities across 14 cities for code 82977, as an inpatient (admitted to hospital) . Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 28, 2026 and Apr 1, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Seattle-Tacoma-Bellevue, WA.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list |
|---|---|---|---|---|
| Saint Clare Hospital lowest Lakewood, WA · (253) 588-1711 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $22.65 | $78.56 | $56.57–$58.92 | 71% |
| St Anthony Hospital Gig Harbor, WA · (253) 530-2050 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $23.90 | $78.56 | $56.57–$58.92 | 70% |
| Highline Medical Center Burien, WA · (206) 431-5237 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $23.99 | $78.56 | $33.79–$70.71 | 69% |
| St Francis Community Hospital Federal Way, WA · (253) 944-8100 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $24.66 | $78.56 | $56.57–$58.92 | 69% |
| Virginia Mason Medical Center Seattle, WA · (206) 223-6600 GLUTAMYLTRANSFERASE, GAMMA (GGT) source file | $25.50 | $50.00 | $32.02–$40.00 | 49% |
| St Joseph Medical Center Tacoma, WA · (253) 627-4101 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $26.02 | $78.56 | $56.57–$58.92 | 67% |
| St Elizabeth Hospital Enumclaw, WA · (360) 825-2505 HC GAMMA GLUTAMYLTRANSFERASE File of Feb 28, 2026 · source file | $27.77 | $78.56 | $22.00–$70.71 | 65% |
| Overlake Medical Center & Clinics Bellevue, WA · (425) 688-5000 Hc Gamma Gt File of Apr 1, 2026 · source file | $34.50 | $69.00 | — | 50% |
| Snoqualmie Valley Hospital Snoqualmie, WA · (425) 831-2300 Facility Fee HC ASSAY OF GGT-LC+1 more line at this price source file | $36.87 | $63.57 | $7.06–$58.48 | 42% |
| Swedish Medical Center Seattle, WA · (206) 386-6000 HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $51.84 | $108.00 | — | 52% |
| Swedish Issaquah Issaquah, WA · (425) 313-4000 HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $51.84 | $108.00 | — | 52% |
| Swedish Medical Center / Cherry Hill Seattle, WA · (206) 320-2000 HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $51.84 | $108.00 | — | 52% |
| Swedish Edmonds Edmonds, WA · (425) 640-4000 HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $51.84 | $108.00 | — | 52% |
| Providence Regional Medical Center Everett Everett, WA · (425) 261-2000 HC GAMMA GT TOTAL File of Apr 1, 2026 · source file | $56.16 | $108.00 | — | 48% |
| Cascade Valley Hospital Arlington, WA · (360) 435-2133 HC GGT source file | $58.40 | $73.00 | $6.21–$65.70 | 20% |
| Kaiser Permanente Central Hospital Seattle, WA · (206) 326-3000 GLUTAMYLTRANSFERASE GAMMA File of Apr 1, 2026 · source file | $61.60 | $77.00 | $6.00–$20.00 | 20% |
| Valley Medical Center Renton, WA · (425) 228-3450 Assay of Glutamyltrase Gamma source file | $65.10 | $93.00 | — | 30% |
| Franciscan Specialty Care Tacoma, WA GGT File of Mar 16, 2026 · source file | $72.10 | $72.10 | $72.10 | — |
| Seattle Children's Hospital Seattle, WA · (206) 987-2000 Ggt, Body Fluid source file | $72.70 | $72.70 | $18.32–$69.79 | — |
| Franciscan Specialty Care Tacoma, WA GAMMA GT (GGT) File of Mar 16, 2026 · source file | $102.71 | $102.71 | $102.71 | — |
Inpatient: lowest $22.65, median $51.84, highest $72.70 — a 3.2× difference within the same market.
As an outpatient, the same code is billed by 18 facilities here, median $44.36 — that is the price to compare if you are not being admitted.
Cash or insurance?
At 9 of 12 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 6 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
A GGT test measures a liver enzyme that rises with bile duct problems and heavy alcohol use. It helps tell whether a high alkaline phosphatase comes from the liver or bone.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.